Had a patient that planted a bunch of olive trees along Fair Oaks Blvd back in the day. Bought the dynamite to make the holes in the hardpan at the hardware store a few blocks from my office. Because you could buy dynamite at the hardware store in the 1940's, go figure. Not too many houses around back then though
You can get them to come out and mark your sewer and utility lines so you don't hit anything expensive while you are planting trees. Here the electric utility will give you shade trees, deliver them to your house.
Free trees Sacramento, maybe they have something similar. Neighbor got a few crape myrtle trees from them that are very nice when in bloom.
Here is the
http://cityplants.org/get-free-trees/our-free-trees-program Looks like they have a lot of different ones too. If they run it any way similar to what they do here, they send someone out, you show them where you want to put the tree and they let you know what they can give you.a